package screens;

import java.util.Vector;

import log.Logger;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.Display;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.container.VerticalFieldManager;
import net.rim.device.api.ui.decor.Background;
import net.rim.device.api.ui.decor.BackgroundFactory;
import strings.WebcampusResource;
import util.LookAndFeel;
import beans.WebCampusFile;
import beans.WebCampusFolder;
import customfields.FileField;
import customfields.FolderField;

public class DownloadsScreen extends TransitionScreen implements WebcampusResource{

	// RESOURCES
	//private static ResourceBundle resources = ResourceBundle.getBundle(BUNDLE_ID, BUNDLE_NAME);

	private Vector folders;

	public DownloadsScreen(Vector fold, int transitionType) {
		super(transitionType);
		
		Logger.log("creating downloads screen");

		this.folders=fold;
		
		// Main vertical field manager
		VerticalFieldManager vfm;
		if (folders.size()>=3){
			vfm = new VerticalFieldManager();
		} else {
			int cantFiles =0;
			for (int i=0; i<folders.size(); i++){
				WebCampusFolder f = (WebCampusFolder) folders.elementAt(i);
				cantFiles += f.getFiles().size();
			}
			if (cantFiles<=6){
			// Main vertical field manager
			vfm = new VerticalFieldManager() {
				protected void sublayout( int maxWidth, int maxHeight )
				{
					//set width
					int displayWidth = Display.getWidth();
					//set height
					int displayHeight = Display.getHeight();
					super.sublayout( displayWidth, displayHeight);
					setExtent( displayWidth, displayHeight);
					System.out.println(displayHeight + "" +displayWidth);
				}	
			};
			} else {
				vfm = new VerticalFieldManager();
			}
		}

		Bitmap background_bitmap = Bitmap.getBitmapResource(LookAndFeel.background_img);
		Bitmap background_bitmap_resized = new Bitmap(Display.getWidth(), background_bitmap.getHeight());
		background_bitmap.scaleInto(background_bitmap_resized, Bitmap.FILTER_LANCZOS | Bitmap.SCALE_TO_FILL);
		Background background = BackgroundFactory.createBitmapBackground(background_bitmap_resized);
		vfm.setBackground(background);

		// Header
		Bitmap header_img = Bitmap.getBitmapResource(LookAndFeel.header_img);
		Bitmap header_img_resized = new Bitmap(Display.getWidth(), (int) (Display.getHeight()*0.25));
		header_img.scaleInto(header_img_resized, Bitmap.FILTER_LANCZOS, Bitmap.SCALE_TO_FILL);
		BitmapField header = new BitmapField(header_img_resized,Field.FIELD_HCENTER);
		vfm.add(header);

		// Separator
		vfm.add(new SeparatorField());
		vfm.add(new LabelField(""));

		for (int i=0; i<folders.size(); i++){
			WebCampusFolder folder = (WebCampusFolder) folders.elementAt(i);
			FolderField fofi = new FolderField(folder.getName(), Field.FIELD_HCENTER);
			Background foba = BackgroundFactory.createSolidTransparentBackground(Color.WHITE, 150);
			fofi.setBackground(foba);
			vfm.add(fofi);
			for (int j=0; j<folder.getFiles().size(); j++){
				WebCampusFile file = (WebCampusFile) folder.getFiles().elementAt(j);
				FileField fifi = new FileField(file.getName(), Field.FIELD_HCENTER | Field.FOCUSABLE);
				Background fiba = BackgroundFactory.createSolidTransparentBackground(Color.WHITE, 100);
				fifi.setBackground(fiba);
				fifi.setCookie(file);
				fifi.setChangeListener(fileListener);
				vfm.add(fifi);
			}
		}
		add(vfm);
	}

	private FieldChangeListener fileListener = new FieldChangeListener() {
		public void fieldChanged(Field field, int context) {
			Controller.getInstance().openFileDownloadScreen((WebCampusFile) field.getCookie());
		}
	};
	
}
